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Smoke test headers.

Discussion in '360/430' started by Danedingerson, Jan 23, 2020.

  1. Danedingerson

    Danedingerson Rookie
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    Dec 26, 2011
    32
    Maui
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    Dane
    I am told you can do a smoke test on the headers by taping a shop vac in reverse to the tail pipe. You light a piece of cardboard ,blow it out ,and hold it by the air inlet of the vac . Definite test for header cracks, easy to do every few months. Anyone tried this?
     
    JaguarXJ6 likes this.
  2. Ianjoub

    Ianjoub Formula Junior

    Dec 22, 2019
    252
    Homosassa, FL USA
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    Ian Joubert
    May have to block the intake snorkel if you have intake and exhaust valves open on the same cylinder (not sure if there is overlap on these motors). I don't know if the cardboard will make thick enough smoke. I own a smoke machine.
     
  3. INRange

    INRange F1 Rookie
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    Jan 27, 2014
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    JD
    The smoke machine is the way to go. Finding leaks....especially small leaks takes time and you do need the type of smoke that smoke machines generate which is easy to see. That said....I would like to see a YouTube video of someone trying to use a shopvac and burning cardboard.o_O
     
    one4torque likes this.
  4. Danedingerson

    Danedingerson Rookie
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    Dec 26, 2011
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    Dane
    Lets say 98% dont have a smoke machine ,like the two ferrari dealers I had do PPI s. who couldnt smoke it for me. Should owners just skip this and settle for looking at the headers instead?
     
  5. INRange

    INRange F1 Rookie
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    Jan 27, 2014
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    JD
    Depends on the age of the car and how many miles are on it. It would seem that the Ferrari dealers you are talking about are choosing not to test the headers. Hard to imagine that a Ferrari dealer doesn't have one. The one I bought cost $500 but I use it for HVAC work as well.

    You can buy this version which will work for checking headers ($114):

    https://www.amazon.com/AutoLine-Pro-Automotive-Detector-Diagnostic/dp/B07JVT1NG2/ref=pd_sbs_263_t_0/130-5599383-3809825?_encoding=UTF8&pd_rd_i=B07JVT1NG2&pd_rd_r=a9300cf2-d038-40b6-a87e-db8a759ab995&pd_rd_w=29MEq&pd_rd_wg=N2P01&pf_rd_p=5cfcfe89-300f-47d2-b1ad-a4e27203a02a&pf_rd_r=2QDKB9QTA66MS2CWPHX3&psc=1&refRID=2QDKB9QTA66MS2CWPHX3
     
  6. 2NA

    2NA F1 World Champ
    Professional Ferrari Technician Owner Consultant

    Dec 29, 2006
    17,678
    Twin Cities
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    Tim Keseluk
    A smoke test is part of the annual service that I do for my customers. It's probably one of the more important tests to perform when evaluating a car with known header problems. Even using a smoke machine it isn't always easy to see leaks.
     

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